To be sure, I strongly recommend:
* Consulting your owner's manual: This is the most reliable source for the location of components in your specific vehicle.
* Using a repair manual specific to your Cadillac Fleetwood Brougham (1996): These manuals contain detailed diagrams and instructions.
* Searching online for images: A Google Images search for "1996 Cadillac Fleetwood Brougham ignition coil location" might reveal photos showing its position on similar models.
Because you are working near the engine and potentially high voltage components, be careful and disconnect the negative battery terminal before starting any work related to the ignition system.